mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-19 19:12:56 +02:00
ae65e281f3
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
109 lines
2.7 KiB
C++
109 lines
2.7 KiB
C++
//===--- unittest/Support/ArrayRecyclerTest.cpp ---------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Support/ArrayRecycler.h"
|
|
#include "llvm/Support/Allocator.h"
|
|
#include "gtest/gtest.h"
|
|
#include <cstdlib>
|
|
|
|
using namespace llvm;
|
|
|
|
namespace {
|
|
|
|
struct Object {
|
|
int Num;
|
|
Object *Other;
|
|
};
|
|
typedef ArrayRecycler<Object> ARO;
|
|
|
|
TEST(ArrayRecyclerTest, Capacity) {
|
|
// Capacity size should never be 0.
|
|
ARO::Capacity Cap = ARO::Capacity::get(0);
|
|
EXPECT_LT(0u, Cap.getSize());
|
|
|
|
size_t PrevSize = Cap.getSize();
|
|
for (unsigned N = 1; N != 100; ++N) {
|
|
Cap = ARO::Capacity::get(N);
|
|
EXPECT_LE(N, Cap.getSize());
|
|
if (PrevSize >= N)
|
|
EXPECT_EQ(PrevSize, Cap.getSize());
|
|
else
|
|
EXPECT_LT(PrevSize, Cap.getSize());
|
|
PrevSize = Cap.getSize();
|
|
}
|
|
|
|
// Check that the buckets are monotonically increasing.
|
|
Cap = ARO::Capacity::get(0);
|
|
PrevSize = Cap.getSize();
|
|
for (unsigned N = 0; N != 20; ++N) {
|
|
Cap = Cap.getNext();
|
|
EXPECT_LT(PrevSize, Cap.getSize());
|
|
PrevSize = Cap.getSize();
|
|
}
|
|
}
|
|
|
|
TEST(ArrayRecyclerTest, Basics) {
|
|
BumpPtrAllocator Allocator;
|
|
ArrayRecycler<Object> DUT;
|
|
|
|
ARO::Capacity Cap = ARO::Capacity::get(8);
|
|
Object *A1 = DUT.allocate(Cap, Allocator);
|
|
A1[0].Num = 21;
|
|
A1[7].Num = 17;
|
|
|
|
Object *A2 = DUT.allocate(Cap, Allocator);
|
|
A2[0].Num = 121;
|
|
A2[7].Num = 117;
|
|
|
|
Object *A3 = DUT.allocate(Cap, Allocator);
|
|
A3[0].Num = 221;
|
|
A3[7].Num = 217;
|
|
|
|
EXPECT_EQ(21, A1[0].Num);
|
|
EXPECT_EQ(17, A1[7].Num);
|
|
EXPECT_EQ(121, A2[0].Num);
|
|
EXPECT_EQ(117, A2[7].Num);
|
|
EXPECT_EQ(221, A3[0].Num);
|
|
EXPECT_EQ(217, A3[7].Num);
|
|
|
|
DUT.deallocate(Cap, A2);
|
|
|
|
// Check that deallocation didn't clobber anything.
|
|
EXPECT_EQ(21, A1[0].Num);
|
|
EXPECT_EQ(17, A1[7].Num);
|
|
EXPECT_EQ(221, A3[0].Num);
|
|
EXPECT_EQ(217, A3[7].Num);
|
|
|
|
// Verify recycling.
|
|
Object *A2x = DUT.allocate(Cap, Allocator);
|
|
EXPECT_EQ(A2, A2x);
|
|
|
|
DUT.deallocate(Cap, A2x);
|
|
DUT.deallocate(Cap, A1);
|
|
DUT.deallocate(Cap, A3);
|
|
|
|
// Objects are not required to be recycled in reverse deallocation order, but
|
|
// that is what the current implementation does.
|
|
Object *A3x = DUT.allocate(Cap, Allocator);
|
|
EXPECT_EQ(A3, A3x);
|
|
Object *A1x = DUT.allocate(Cap, Allocator);
|
|
EXPECT_EQ(A1, A1x);
|
|
Object *A2y = DUT.allocate(Cap, Allocator);
|
|
EXPECT_EQ(A2, A2y);
|
|
|
|
// Back to allocation from the BumpPtrAllocator.
|
|
Object *A4 = DUT.allocate(Cap, Allocator);
|
|
EXPECT_NE(A1, A4);
|
|
EXPECT_NE(A2, A4);
|
|
EXPECT_NE(A3, A4);
|
|
|
|
DUT.clear(Allocator);
|
|
}
|
|
|
|
} // end anonymous namespace
|